Subject
Missing persons
14
Murder Investigation
10
Kidnapping
9
Revenge
8
Government investigators
7
Homicide
7
Friendship
6
Interpersonal relations
6
Murder
6
Secrecy
6
Siblings
6
Americans
5
Criminal investigation
5
London (England)
5
Missing children
5
Serial murder investigation
5
Women journalists
5
Assassins
4
Communicable diseases
4
Families
4
Fugitives from justice
4
Journalists
4
Man-woman relationships
4
Missing persons Investigation
4
Police
4
Survival
4
Airplane crash survival
3
Artists
3
Attempted assassination
3
California
3
Death
3
Grandmothers
3
High school students
3
Intelligence officers
3
Marine biologists
3
Mothers and daughters
3
New York (N.Y.)
3
Officials and employees
3
Psychologists
3
Shipwreck survival
3
Survival at sea
3
Teenage girls
3
Terrorism Prevention
3
Victims of crimes
3
Washington (D.C.)
3
Young adult fiction
3
Actors
2
American fiction
2
American fiction Women authors
2
Arctic regions
2
more ...